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Notesnook vs Notes Tech: catalog facts
Notesnook	Notes Tech
Freemium A free tier covers unlimited notes and sync across devices. A paid Pro subscription adds…	Free Free and open source under the Apache-2.0 licence.
Windows, macOS, Linux, Android, Web	Android
End-to-end encrypted on device with XChaCha20-Poly1305 and Argon2, so the service holds no readable data The full client codebase is published, which makes the privacy claim auditable	No internet permission and no account Encrypted database with per-folder vaults
An account is required; it is a sync service, not a local-only app Encryption means no server-side search, and losing your password loses the notes	Uninstalling the app permanently deletes all notes No sync between devices
Downloadable app, Web application	Downloadable app
Open source	Open source
License: GPL-3.0	License: Apache-2.0
Account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.